<?php
//if(!defined('INCLUDED')) exit("Access denied");
/***************************************
** Title.........: HTML Mime Mail class
** Version.......: 2.0.2
** Author........: Richard Heyes <richard@phpguru.org>
** Filename......: class.html.mime.mail.class
** Last changed..: 11 October 2001
** License.......: Free to use. If you find it useful
**                 though, feel free to buy me something
**                 from my wishlist :)
**                 http://www.amazon.co.uk/exec/obidos/wishlist/S8H2UOGMPZK6
***************************************/

//pninclude_once("modules/NS-Product_Search/includes/mimePart.php");
//require_once("modules/$ModName/includes/mimePart.php");

class html_mime_mail{

    var $html;
    var $text;
    var $output;
    var $html_text;
    var $html_images;
    var $image_types;
    var $build_params;
    var $attachments;
    var $headers;

/***************************************
** Constructor function. Sets the headers
** if supplied.
***************************************/

    function html_mime_mail($headers = array()){

        /***************************************
        ** Make sure this is defined. This should
        ** be \r\n, but due to many people having
        ** trouble with that, it is by default \n
        ** If you leave it as is, you will be breaking
        ** quite a few standards.
        ***************************************/

        if(!defined('CRLF'))
            define('CRLF', "\n", TRUE);

        /***************************************
        ** Initialise some variables.
        ***************************************/

        $this->html_images    = array();
        $this->headers        = array();

        /***************************************
        ** If you want the auto load functionality
        ** to find other image/file types, add the
        ** extension and content type here.
        ***************************************/

        $this->image_types = array(
                                    'gif'    => 'image/gif',
                                    'jpg'    => 'image/jpeg',
                                    'jpeg'    => 'image/jpeg',
                                    'jpe'    => 'image/jpeg',
                                    'bmp'    => 'image/bmp',
                                    'png'    => 'image/png',
                                    'tif'    => 'image/tiff',
                                    'tiff'    => 'image/tiff',
                                    'swf'    => 'application/x-shockwave-flash'
                                  );

        /***************************************
        ** Set these up
        ***************************************/

        $this->build_params['html_encoding']    = 'quoted-printable';
        $this->build_params['text_encoding']    = '7bit';
        $this->build_params['html_charset']        = 'UTF-8';
        $this->build_params['text_charset']        = 'UTF-8';
        $this->build_params['text_wrap']        = 998;

        /***************************************
        ** Make sure the MIME version header is first.
        ***************************************/

        $this->headers[] = 'MIME-Version: 1.0';

        foreach($headers as $value){
            if(!empty($value))
                $this->headers[] = $value;
        }
    }

/***************************************
** This function will read a file in
** from a supplied filename and return
** it. This can then be given as the first
** argument of the the functions
** add_html_image() or add_attachment().
***************************************/

    function get_file($filename){

        if($fp = fopen($filename, 'rb')){
           if (!stristr($filename,"http://")){   //F.L. added for http requested/generated files
                $return = fread( $fp, filesize( $filename ) );
           } else {
                $return = fread( $fp, 999999 );
           }
//            $return = fread($fp, filesize($filename));
            fclose($fp);
            return $return;

        }else
            return FALSE;
    }

/***************************************
** Function for extracting images from
** html source. This function will look
** through the html code supplied by add_html()
** and find any file that ends in one of the
** extensions defined in $obj->image_types.
** If the file exists it will read it in and
** embed it, (not an attachment).
**
** Function contributed by Dan Allen
***************************************/

    function find_html_images($images_dir) {

        // Build the list of image extensions
        while(list($key,) = each($this->image_types))
            $extensions[] = $key;

        preg_match_all('/"([^"]+\.('.implode('|', $extensions).'))"/Ui', $this->html, $images);

        for($i=0; $i<count($images[1]); $i++){
            if(file_exists($images_dir.$images[1][$i])){
                $html_images[] = $images[1][$i];
                $this->html = str_replace($images[1][$i], basename($images[1][$i]), $this->html);
            }
        }

        if(!empty($html_images)){

            // If duplicate images are embedded, they may show up as attachments, so remove them.
            $html_images = array_unique($html_images);
            sort($html_images);

            for($i=0; $i<count($html_images); $i++){
                if($image = $this->get_file($images_dir.$html_images[$i])){
                    $content_type = $this->image_types[substr($html_images[$i], strrpos($html_images[$i], '.') + 1)];
                    $this->add_html_image($image, basename($html_images[$i]), $content_type);
                }
            }
        }
    }

/***************************************
** Adds plain text. Use this function
** when NOT sending html email
***************************************/

    function add_text($text = ''){
        $this->text = $text;
    }

/***************************************
** Adds a html part to the mail.
** Also replaces image names with
** content-id's.
***************************************/

    function add_html($html, $text = NULL, $images_dir = NULL){

        $this->html            = $html;
        $this->html_text    = $text;

        if(isset($images_dir))
            $this->find_html_images($images_dir);
    }

/***************************************
** Adds an image to the list of embedded
** images.
***************************************/

    function add_html_image($file, $name = '', $c_type='application/octet-stream'){
        $this->html_images[] = array(
                                        'body'   => $file,
                                        'name'   => $name,
                                        'c_type' => $c_type,
                                        'cid'    => md5(uniqid(time()))
                                    );
    }


/***************************************
** Adds a file to the list of attachments.
***************************************/

    function add_attachment($file, $name = '', $c_type='application/octet-stream', $encoding = 'base64'){
        $this->attachments[] = array(
                                    'body'        => $file,
                                    'name'        => $name,
                                    'c_type'    => $c_type,
                                    'encoding'    => $encoding
                                  );
    }

/***************************************
** Adds a text subpart to a mime_part object
***************************************/

    function &add_text_part(&$obj, $text){

        $params['content_type'] = 'text/plain';
        $params['encoding']     = $this->build_params['text_encoding'];
        $params['charset']      = $this->build_params['text_charset'];
        if(is_object($obj)){
            return $obj->addSubpart($text, $params);
        }else{
            return new Mail_mimePart($text, $params);
        }
    }

/***************************************
** Adds a html subpart to a mime_part object
***************************************/

    function &add_html_part(&$obj){

        $params['content_type'] = 'text/html';
        $params['encoding']     = $this->build_params['html_encoding'];
        $params['charset']      = $this->build_params['html_charset'];
        if(is_object($obj)){
            return $obj->addSubpart($this->html, $params);
        }else{
            return new Mail_mimePart($this->html, $params);
        }
    }

/***************************************
** Starts a message with a mixed part
***************************************/

    function &add_mixed_part(){

        $params['content_type'] = 'multipart/mixed';
        return new Mail_mimePart('', $params);
    }

/***************************************
** Adds an alternative part to a mime_part object
***************************************/

    function &add_alternative_part(&$obj){

        $params['content_type'] = 'multipart/alternative';
        if(is_object($obj)){
            return $obj->addSubpart('', $params);
        }else{
            return new Mail_mimePart('', $params);
        }
    }

/***************************************
** Adds a html subpart to a mime_part object
***************************************/

    function &add_related_part(&$obj){

        $params['content_type'] = 'multipart/related';
        if(is_object($obj)){
            return $obj->addSubpart('', $params);
        }else{
            return new Mail_mimePart('', $params);
        }
    }

/***************************************
** Adds an html image subpart to a mime_part object
***************************************/

    function &add_html_image_part(&$obj, $value){

        $params['content_type'] = $value['c_type'];
        $params['encoding']     = 'base64';
        $params['disposition']  = 'inline';
        $params['dfilename']    = $value['name'];
        $params['cid']          = $value['cid'];
        $obj->addSubpart($value['body'], $params);
    }

/***************************************
** Adds an attachment subpart to a mime_part object
***************************************/

    function &add_attachment_part(&$obj, $value){

        $params['content_type'] = $value['c_type'];
        $params['encoding']     = $value['encoding'];
        $params['disposition']  = 'attachment';
        $params['dfilename']    = $value['name'];
        $obj->addSubpart($value['body'], $params);
    }

/***************************************
** Builds the multipart message from the
** list ($this->_parts). $params is an
** array of parameters that shape the building
** of the message. Currently supported are:
**
** $params['html_encoding'] - The type of encoding to use on html. Valid options are
**                            "7bit", "quoted-printable" or "base64" (all without quotes).
**                            7bit is EXPRESSLY NOT RECOMMENDED. Default is quoted-printable
** $params['text_encoding'] - The type of encoding to use on plain text Valid options are
**                            "7bit", "quoted-printable" or "base64" (all without quotes).
**                            Default is 7bit
** $params['text_wrap']     - The character count at which to wrap 7bit encoded data.
**                            Default this is 998.
** $params['html_charset']  - The character set to use for a html section.
**                            Default is iso-8859-1
** $params['text_charset']  - The character set to use for a text section.
**                          - Default is iso-8859-1
***************************************/

    function build_message($params = array()){

        if(count($params) > 0)
            while(list($key, $value) = each($params))
                $this->build_params[$key] = $value;

        if(!empty($this->html_images))
            foreach($this->html_images as $value)
                $this->html = str_replace($value['name'], 'cid:'.$value['cid'], $this->html);

        $null        = NULL;
        $attachments = !empty($this->attachments) ? TRUE : FALSE;
        $html_images = !empty($this->html_images) ? TRUE : FALSE;
        $html        = !empty($this->html)        ? TRUE : FALSE;
        $text        = isset($this->text)         ? TRUE : FALSE;

        switch(TRUE){
            case $text AND !$attachments:
                $message =& $this->add_text_part($null, $this->text);
                break;

            case !$text AND $attachments AND !$html:
                $message =& $this->add_mixed_part();

                for($i=0; $i<count($this->attachments); $i++)
                    $this->add_attachment_part($message, $this->attachments[$i]);
                break;

            case $text AND $attachments:
                $message =& $this->add_mixed_part();
                $this->add_text_part($message, $this->text);

                for($i=0; $i<count($this->attachments); $i++)
                    $this->add_attachment_part($message, $this->attachments[$i]);
                break;

            case $html AND !$attachments AND !$html_images:
                if(!is_null($this->html_text)){
                    $message =& $this->add_alternative_part($null);
                    $this->add_text_part($message, $this->html_text);
                    $this->add_html_part($message);
                }else{
                    $message =& $this->add_html_part($null);
                }
                break;

            case $html AND !$attachments AND $html_images:
                if(!is_null($this->html_text)){
                    $message =& $this->add_alternative_part($null);
                    $this->add_text_part($message, $this->html_text);
                    $related =& $this->add_related_part($message);
                }else{
                    $related =& $this->add_related_part($null);
                }
                $this->add_html_part($related);
                for($i=0; $i<count($this->html_images); $i++)
                    $this->add_html_image_part($related, $this->html_images[$i]);
                break;

            case $html AND $attachments AND !$html_images:
                $message =& $this->add_mixed_part();
                if(!is_null($this->html_text)){
                    $alt =& $this->add_alternative_part($message);
                    $this->add_text_part($alt, $this->html_text);
                    $this->add_html_part($alt);
                }else{
                    $this->add_html_part($message);
                }
                for($i=0; $i<count($this->attachments); $i++)
                    $this->add_attachment_part($message, $this->attachments[$i]);
                break;

            case $html AND $attachments AND $html_images:
                $message =& $this->add_mixed_part();
                if(!is_null($this->html_text)){
                    $alt =& $this->add_alternative_part($message);
                    $this->add_text_part($alt, $this->html_text);
                    $rel =& $this->add_related_part($alt);
                }else{
                    $rel =& $this->add_related_part($message);
                }
                $this->add_html_part($rel);
                for($i=0; $i<count($this->html_images); $i++)
                    $this->add_html_image_part($rel, $this->html_images[$i]);
                for($i=0; $i<count($this->attachments); $i++)
                    $this->add_attachment_part($message, $this->attachments[$i]);
                break;

        }

        if(isset($message)){
            $output = $message->encode();
            $this->output = $output['body'];

            foreach($output['headers'] as $key => $value){
                $headers[] = $key.': '.$value;
            }

            $this->headers = array_merge($this->headers, $headers);
            return TRUE;
        }else
            return FALSE;
    }

/***************************************
** Sends the mail.
***************************************/

    function send($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = ''){
        $to        = ($to_name != '')   ? '"'.$to_name.'" <'.$to_addr.'>' : $to_addr;
        $from    = ($from_name != '') ? '"'.$from_name.'" <'.$from_addr.'>' : $from_addr;

        if(is_string($headers))
            $headers = explode(CRLF, trim($headers));

        for($i=0; $i<count($headers); $i++){
            if(is_array($headers[$i]))
                for($j=0; $j<count($headers[$i]); $j++)
                    if($headers[$i][$j] != '')
                        $xtra_headers[] = $headers[$i][$j];

            if($headers[$i] != '')
                $xtra_headers[] = $headers[$i];
        }
        if(!isset($xtra_headers))
            $xtra_headers = array();

        return mail($to, $subject, $this->output, 'From: '.$from.CRLF.implode(CRLF, $this->headers).CRLF.implode(CRLF, $xtra_headers));
    }

/***************************************
** Use this method to deliver using direct
** smtp connection. Relies upon the smtp
** class available from http://www.heyes-computing.net
** You probably downloaded it with this class though.
**
** bool smtp_send(
**                object The smtp object,
**                array  Parameters to pass to the smtp object
**                       See example.1.php for details.
**               )
***************************************/

    function smtp_send(&$smtp, $params = array()){

        foreach($params as $key => $value){
            switch($key){
                case 'headers':
                    $headers = $value;
                    break;

                case 'from':
                    $send_params['from'] = $value;
                    break;

                case 'recipients':
                    $send_params['recipients'] = $value;
                    break;
            }
        }

        $send_params['body']    = $this->output;
        $send_params['headers']    = array_merge($this->headers, $headers);

        return $smtp->send($send_params);
    }

/***************************************
** Use this method to return the email
** in message/rfc822 format. Useful for
** adding an email to another email as
** an attachment. there's a commented
** out example in example.php.
**
** string get_rfc822(string To name,
**           string To email,
**           string From name,
**           string From email,
**           [string Subject,
**            string Extra headers])
***************************************/

    function get_rfc822($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = ''){

        // Make up the date header as according to RFC822
        $date = 'Date: '.date('D, d M y H:i:s');

        $to   = ($to_name   != '') ? 'To: "'.$to_name.'" <'.$to_addr.'>' : 'To: '.$to_addr;
        $from = ($from_name != '') ? 'From: "'.$from_name.'" <'.$from_addr.'>' : 'From: '.$from_addr;

        if(is_string($subject))
            $subject = 'Subject: '.$subject;

        if(is_string($headers))
            $headers = explode(CRLF, trim($headers));

        for($i=0; $i<count($headers); $i++){
            if(is_array($headers[$i]))
                for($j=0; $j<count($headers[$i]); $j++)
                    if($headers[$i][$j] != '')
                        $xtra_headers[] = $headers[$i][$j];

            if($headers[$i] != '')
                $xtra_headers[] = $headers[$i];
        }

        if(!isset($xtra_headers))
            $xtra_headers = array();

        $headers = array_merge($this->headers, $xtra_headers);

        return $date.CRLF.$from.CRLF.$to.CRLF.$subject.CRLF.implode(CRLF, $headers).CRLF.CRLF.$this->output;
    }


} // End of class.
?>